A couple of thoughts I would not spend money on a hood to match cabinets in a small space IMO they only work in large kitchens . Just a simple stainless hood with maybe glass would be in keeping with your choices. I would not mix metals either in a small space.You will need something behind the stove unless your stove has something at the top to protect the walls. I think backsplash tile is a much nicer look than counter material for a backsplash and that would give you the ability to use the same tile behind the stove to keep it simple. Glass tile in a blue might be quite stunning with the counter and the floor. As for walls I would just use the same color as the cabinets in a matte finish and after all the other pieces of furniture are in place you can decide if you want some color on some walls. I kind of like the colors you are thinking about but I would wait .

..just to say that I really like your kitchen and its colors. The cabintets seem so alive..the color and texture remind me some animal's fur. And the counter is not non-descriptive to me, at all. I look at your kitchen-and I see something I'd like to pet. It's warm and has character. It's like forest in the fall. I didn't want to write all these silly things, but I've been looking at your kitchen all day. And today when I woke up-I started looking at it again. So here goes. It's pleasant to look at.. Of course it's not about me liking your kitchen, but you' liking your kitchen. But you said you liked it, or at least do not dislike it, you just want it to feel newer. So change of hardware is a a good thing then, and of course you can decide to change counters, add backsplash, etc. If so you wish. Appliances, in some foreseaable future.. But the easiest thing would be to change your perception of it, and since it's a kitchen open to other space(living? family?), even if you change something there, your perception of your kitchen will be diffrent. Say you decide you want to put curtains on windows (have no idea whether you want to-just an example). As you'll see them from the kitchen-the overall perception of space will change. And will feel newer, (it can be light fixture, new art added, many things). You can also put some crock you really like, in the kitchen, or any accessory like that that will be both functional but will uplift your mood. I agree you don't need anything on the top of your cabinets. Unless you are, say, an avid collector of teapots, and ran out of space, and ..along these lines:) But no, they look good empty. They don't really need anything, these cabinets. Sorry for the typos..my laptop is misbehaving more than usual today.

SW 7028 incredible white. It’s a soothing white - I didn’t want stark. I went against designer idea to match the crown molding / trim to cabinet color. I wanted variance-cabinets to be their own thing- glad I listened to my gut because it’s a ton of cabinets to not like-it’s really a great color- looks great with the satin bronze hardware.

You could do it w/a jigsaw. (borrow or rent one if you don't have one) These are some DIY links that will walk you through it. Grab a friend w/a bit more know-how if you don't think you can manage. (or, you can always pay a pro to do it. ) DIY all you have to do is go to a glass shop and give them the measurements of the cut piece you'll need. try seeded glass. then you silicone the glass on the back and hold in place w/glass clips. https://www.familyhandyman.com/project/convert-wood-cabinet-doors-to-glass/ a few more how-to's https://www.confessionsofaserialdiyer.com/how-to-add-glass-to-cabinet-doors/ https://providenthomedesign.com/2014/03/03/diy-glass-cabinet-door/ This one is very detailed: https://simplyrooms.wordpress.com/2012/09/23/project-converting-cabinet-doors-to-glass/ you may need some more tools for this since you are keeping the real wood. you'll have to finish off the edges after cutting. not difficult, just another step. for a few hundrend, you could prob get a cabinet guy to do it all for you.